Ink jet print head front face having a textured superoleophobic surface and methods for making the same
AssigneeXerox Corporation
InventorsHong Zhao, Kyoo-Chul Park, Kock-Yee Law
Life of this patent
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Abstract
An ink jet print head front face or nozzle plate having a textured superoleophobic surface that prevents undesirable drooling, wetting and/or adhesion of the ink on the print head. The textured surface includes a rim formed around the nozzle. Also described are methods for forming the textured superoleophobic ink jet print head front face or nozzle plate from silicon having the textured, oleophobic surface.
Claims22
An ink jet print head front face or nozzle plate having a textured superoleophobic surface comprising:
- a silicon substrate having a front side and a back side;
- an ink reservoir formed in the back side of the silicon substrate;
- a textured pattern formed into the front side of the silicon substrate;
- one or more nozzle holes formed into the silicon substrate to form one or more nozzle holes for the ink jet print head front face or nozzle plate;
- and
- a ring formed around a circumference of the one or more nozzle holes;
- and
- a conformal oleophobic coating disposed on the textured pattern.
An ink jet print head front face or nozzle plate comprising:
- a silicon substrate;
- a textured pattern formed into one side of the silicon substrate;
- one or more nozzle holes formed into the one side of the silicon substrate to form one or more nozzle holes in the ink jet print head front face or nozzle plate;
- a ring formed around a circumference of the one or more nozzle holes;
- and
- a conformal oleophobic coating disposed on the textured pattern, wherein the textured pattern comprises one or more fluorosilane layers synthesized through molecular vapor deposition, vapor phase technique, or solution coating and further comprises a self-assembled layer synthesized from the group consisting of tridecafluoro-1,1,2,2-tetrahydrooctyltrichlorosilane, tridecafluoro-1,1,2,2-tetrahydrooctyltrimethoxysilane, tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane, heptadecafluoro-1,1,2,2-tetrahydrooctyltrichlorosilane, heptadecafluoro-1,1,2,2-tetrahydrooctyltrimethoxysilane, and heptadecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane.
An ink jet print head front face or nozzle plate comprising:
- a silicon substrate;
- a textured pattern formed into one side of the silicon substrate;
- one or more nozzle holes formed into the one side of the silicon substrate to form one or more nozzle holes in the ink jet print head front face or nozzle plate;
- and
- a ring formed around a circumference of the one or more nozzle holes;
- and
- a conformal oleophobic coating disposed by e-beam deposition, thermal deposition, sputtering or solution coating on the textured pattern, wherein the textured pattern comprises one or more of coating materials selected from the group consisting of an amorphous fluoropolymer, a perfluoropolyether polymer, and mixtures thereof.
Dependencies are inferred from the claim text.